Roskin, Michael G. <br/><br/>
Political science :  an introduction / 
Michael G. Roskin... [et.al]. 
 - seventh edition. 
 - xvii, 398 pages. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0-13-020872-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political science.